/*
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */
package org.mule.runtime.config.spring.parsers.generic;

import org.mule.runtime.config.spring.parsers.assembly.BeanAssembler;
import org.mule.runtime.core.util.StringUtils;

import org.springframework.beans.factory.xml.ParserContext;
import org.w3c.dom.Element;
import org.w3c.dom.Node;

/**
 * Grabs the text from an element and injects it into the parent, for example:
 * 
 * <foo> <bar-text>A bunch of text.</bar-text> </foo>
 * 
 * registerBeanDefinitionParser("foo", new OrphanDefinitionParser(Foo.class)); registerBeanDefinitionParser("bar-text", new
 * TextDefinitionParser("barText"));
 * 
 * will result in a call to Foo.setBarText("A bunch of text.")
 */
public class TextDefinitionParser extends ChildDefinitionParser {

  private boolean requireCdata = false;

  public TextDefinitionParser(String setterMethod) {
    super(setterMethod, String.class);
  }

  public TextDefinitionParser(String setterMethod, boolean requireCdata) {
    super(setterMethod, String.class);
    this.requireCdata = requireCdata;
  }

  @Override
  protected void postProcess(ParserContext context, BeanAssembler assembler, Element element) {
    Node node = element.getFirstChild();

    if (requireCdata && node.getNodeType() != Node.CDATA_SECTION_NODE) {
      node = node.getNextSibling();
      if (node == null) {
        throw new IllegalArgumentException("No CDATA node found in " + element.getNodeName());
      } else if (node.getNodeType() != Node.CDATA_SECTION_NODE) {
        throw new IllegalArgumentException("Sibling node is not a CDATA section, but one should be defined. Elements is "
            + element.getNodeName());
      }
    }
    if (node != null) {
      String value = node.getNodeValue();
      if (!StringUtils.isBlank(value)) {
        assembler.getTarget().getPropertyValues().addPropertyValue(setterMethod, value);
      }
    }
  }
}
